高弹粘流在三维变厚度狭缝流道中流动的数值模拟

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Numerical Simulation of Flow of Highly Viscoelastic Flow in Three-Dimensional Varying Thick Slit Channel

Department of Applied Mathematics and Mechanics, Hefei University of Techniology, Hefei 230009, P. R. China

摘要: 用有限块法对高弹粘流在三维变厚度狭缝流道中的流动进行数值模拟.求出流体流量在流道中的分布规律;通过对实际板材挤出模鱼尾型流道中设置阻流块对流动影响的计算,证实有限块法是简易可行的,从而为挤出模的计算机辅助设计提供了一个重要手段.
- 高弹粘流 /
- 润滑逼近 /
- 变厚度狭缝流道 /
- 数值模拟
Abstract: The distributive law of flow rate is studiedfor highly viscoelastic flow in threedimensional slit channel with varying thickness by using Finite Block Element Method(FBM).As an example.the influence of restrictive block on.flow rate is obtained in fish channel of the plate extruding die and the results of numerical simulation are in concordance withthe approximatical analytical solution.It is proved that FBM can be considered as an important toolfor CAD/CAM.
- highly viscoelastic flow /
- lubricating approximation /
- varying thick slit channel /
- numerical simulation

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